The Experts below are selected from a list of 1408905 Experts worldwide ranked by ideXlab platform
Xixi Dong - One of the best experts on this subject based on the ideXlab platform.
-
Evidence of disruption of Si-rich microstructure in engineering-lightweight Al–12.2at.%Si alloy melt above liquidus temperature
Scientific Reports, 2020Co-Authors: Xixi Dong, Sajjad Amirkhanlou, Pjotr Popel, Ulf Dahlborg, M. Calvo-dahlborgAbstract:The exploration of Microstructures in high temperature alloy melts is important for manufacturing of metallic components but extremely challenging. Here, we report experimental evidence of the disruption of Si-rich microstructure in engineering-lightweight Al-12.2at.%Si alloy melt at 1100 °C, via melt-spinning (MS) of Al 1−x Si x (x = 0.03,0.07,0.122,0.2) alloy melts from different initial melt temperatures, 800 °C and 1100 °C, under the super-high cooling rate of ~ 10 6 °C/s, in cooperation with the small angle neutron scattering (SANS) measurement. Si particles in 1100 °C MS alloys are abnormally smaller and increased in number at Al-12.2at.%Si, compared with 800 °C MS alloys, which demonstrates the disruption of Si-rich microstructure in Al-12.2at.%Si alloy melt at 1100 °C. SANS experiment verifies that large quantities of small (0-10 nm) Si-rich Microstructures and small quantities of large (10-240 nm) Si-rich Microstructures exist in Al-12.2at.%Si alloy melt, and the large Si-rich Microstructures disrupt into small Si-rich Microstructures with increasing of melt temperature from 800 to 1100 °C. Microstructure analysis of the MS alloys indicates that the large Si-rich Microstructures in Al-12.2at.%Si alloy melt are probably aggregates comprising multiple small Si-rich Microstructures. This work also provides a pathway for the exploration of Microstructures in other high temperature alloy melts. The structural materials especially metallic alloys are basic support of modern society 1,2. Most of the metallic alloy components are manufactured from the initial melt state via the metallurgy and casting route, and the microstructure in alloy melts will affect the subsequent solidification and mechanical properties of metallic components 3-7. However, the exploration of microstructure in alloy melts is always extraordinary challenging, due to the high temperature of alloy melts that usually ranges from several hundreds to ~ 3500 °C. The Al-Si based alloys are important lightweight engineering alloys in automotive, aerospace and other industries, which constitute ~ 90 % of all aluminium shape castings 8-14. As a special system, Al-Si alloy comprises two elements with a large melting point discrepancy at 754 °C (Al: 660 °C, Si: 1414 °C), which provides theoretical possibility for the existence of Si-rich microstructure in the molten state 15. In addition, the measurement of irreversible changes in physical properties such as density during heating and cooling cycles supported the microstructure evolution in Al-Si alloy melts with changing of melt temperature 16 , however, we can hardly get information of the detail microstructure evolution in the Al-Si alloy melts from the measurement of physical properties. open
-
evidence of disruption of si rich microstructure in engineering lightweight al 12 2at si alloy melt above liquidus temperature
Scientific Reports, 2020Co-Authors: Xixi Dong, Sajjad Amirkhanlou, Pjotr Popel, Ulf Dahlborg, M CalvodahlborgAbstract:The exploration of Microstructures in high temperature alloy melts is important for manufacturing of metallic components but extremely challenging. Here, we report experimental evidence of the disruption of Si-rich microstructure in engineering-lightweight Al-12.2at.%Si alloy melt at 1100 °C, via melt-spinning (MS) of Al1-xSix (x = 0.03,0.07,0.122,0.2) alloy melts from different initial melt temperatures, 800 °C and 1100 °C, under the super-high cooling rate of ~ 106 °C/s, in cooperation with the small angle neutron scattering (SANS) measurement. Si particles in 1100 °C MS alloys are abnormally smaller and increased in number at Al-12.2at.%Si, compared with 800 °C MS alloys, which demonstrates the disruption of Si-rich microstructure in Al-12.2at.%Si alloy melt at 1100 °C. SANS experiment verifies that large quantities of small (0-10 nm) Si-rich Microstructures and small quantities of large (10-240 nm) Si-rich Microstructures exist in Al-12.2at.%Si alloy melt, and the large Si-rich Microstructures disrupt into small Si-rich Microstructures with increasing of melt temperature from 800 to 1100 °C. Microstructure analysis of the MS alloys indicates that the large Si-rich Microstructures in Al-12.2at.%Si alloy melt are probably aggregates comprising multiple small Si-rich Microstructures. This work also provides a pathway for the exploration of Microstructures in other high temperature alloy melts.
M Calvodahlborg - One of the best experts on this subject based on the ideXlab platform.
-
evidence of disruption of si rich microstructure in engineering lightweight al 12 2at si alloy melt above liquidus temperature
Scientific Reports, 2020Co-Authors: Xixi Dong, Sajjad Amirkhanlou, Pjotr Popel, Ulf Dahlborg, M CalvodahlborgAbstract:The exploration of Microstructures in high temperature alloy melts is important for manufacturing of metallic components but extremely challenging. Here, we report experimental evidence of the disruption of Si-rich microstructure in engineering-lightweight Al-12.2at.%Si alloy melt at 1100 °C, via melt-spinning (MS) of Al1-xSix (x = 0.03,0.07,0.122,0.2) alloy melts from different initial melt temperatures, 800 °C and 1100 °C, under the super-high cooling rate of ~ 106 °C/s, in cooperation with the small angle neutron scattering (SANS) measurement. Si particles in 1100 °C MS alloys are abnormally smaller and increased in number at Al-12.2at.%Si, compared with 800 °C MS alloys, which demonstrates the disruption of Si-rich microstructure in Al-12.2at.%Si alloy melt at 1100 °C. SANS experiment verifies that large quantities of small (0-10 nm) Si-rich Microstructures and small quantities of large (10-240 nm) Si-rich Microstructures exist in Al-12.2at.%Si alloy melt, and the large Si-rich Microstructures disrupt into small Si-rich Microstructures with increasing of melt temperature from 800 to 1100 °C. Microstructure analysis of the MS alloys indicates that the large Si-rich Microstructures in Al-12.2at.%Si alloy melt are probably aggregates comprising multiple small Si-rich Microstructures. This work also provides a pathway for the exploration of Microstructures in other high temperature alloy melts.
M. Calvo-dahlborg - One of the best experts on this subject based on the ideXlab platform.
-
Evidence of disruption of Si-rich microstructure in engineering-lightweight Al–12.2at.%Si alloy melt above liquidus temperature
Scientific Reports, 2020Co-Authors: Xixi Dong, Sajjad Amirkhanlou, Pjotr Popel, Ulf Dahlborg, M. Calvo-dahlborgAbstract:The exploration of Microstructures in high temperature alloy melts is important for manufacturing of metallic components but extremely challenging. Here, we report experimental evidence of the disruption of Si-rich microstructure in engineering-lightweight Al-12.2at.%Si alloy melt at 1100 °C, via melt-spinning (MS) of Al 1−x Si x (x = 0.03,0.07,0.122,0.2) alloy melts from different initial melt temperatures, 800 °C and 1100 °C, under the super-high cooling rate of ~ 10 6 °C/s, in cooperation with the small angle neutron scattering (SANS) measurement. Si particles in 1100 °C MS alloys are abnormally smaller and increased in number at Al-12.2at.%Si, compared with 800 °C MS alloys, which demonstrates the disruption of Si-rich microstructure in Al-12.2at.%Si alloy melt at 1100 °C. SANS experiment verifies that large quantities of small (0-10 nm) Si-rich Microstructures and small quantities of large (10-240 nm) Si-rich Microstructures exist in Al-12.2at.%Si alloy melt, and the large Si-rich Microstructures disrupt into small Si-rich Microstructures with increasing of melt temperature from 800 to 1100 °C. Microstructure analysis of the MS alloys indicates that the large Si-rich Microstructures in Al-12.2at.%Si alloy melt are probably aggregates comprising multiple small Si-rich Microstructures. This work also provides a pathway for the exploration of Microstructures in other high temperature alloy melts. The structural materials especially metallic alloys are basic support of modern society 1,2. Most of the metallic alloy components are manufactured from the initial melt state via the metallurgy and casting route, and the microstructure in alloy melts will affect the subsequent solidification and mechanical properties of metallic components 3-7. However, the exploration of microstructure in alloy melts is always extraordinary challenging, due to the high temperature of alloy melts that usually ranges from several hundreds to ~ 3500 °C. The Al-Si based alloys are important lightweight engineering alloys in automotive, aerospace and other industries, which constitute ~ 90 % of all aluminium shape castings 8-14. As a special system, Al-Si alloy comprises two elements with a large melting point discrepancy at 754 °C (Al: 660 °C, Si: 1414 °C), which provides theoretical possibility for the existence of Si-rich microstructure in the molten state 15. In addition, the measurement of irreversible changes in physical properties such as density during heating and cooling cycles supported the microstructure evolution in Al-Si alloy melts with changing of melt temperature 16 , however, we can hardly get information of the detail microstructure evolution in the Al-Si alloy melts from the measurement of physical properties. open
Sajjad Amirkhanlou - One of the best experts on this subject based on the ideXlab platform.
-
Evidence of disruption of Si-rich microstructure in engineering-lightweight Al–12.2at.%Si alloy melt above liquidus temperature
Scientific Reports, 2020Co-Authors: Xixi Dong, Sajjad Amirkhanlou, Pjotr Popel, Ulf Dahlborg, M. Calvo-dahlborgAbstract:The exploration of Microstructures in high temperature alloy melts is important for manufacturing of metallic components but extremely challenging. Here, we report experimental evidence of the disruption of Si-rich microstructure in engineering-lightweight Al-12.2at.%Si alloy melt at 1100 °C, via melt-spinning (MS) of Al 1−x Si x (x = 0.03,0.07,0.122,0.2) alloy melts from different initial melt temperatures, 800 °C and 1100 °C, under the super-high cooling rate of ~ 10 6 °C/s, in cooperation with the small angle neutron scattering (SANS) measurement. Si particles in 1100 °C MS alloys are abnormally smaller and increased in number at Al-12.2at.%Si, compared with 800 °C MS alloys, which demonstrates the disruption of Si-rich microstructure in Al-12.2at.%Si alloy melt at 1100 °C. SANS experiment verifies that large quantities of small (0-10 nm) Si-rich Microstructures and small quantities of large (10-240 nm) Si-rich Microstructures exist in Al-12.2at.%Si alloy melt, and the large Si-rich Microstructures disrupt into small Si-rich Microstructures with increasing of melt temperature from 800 to 1100 °C. Microstructure analysis of the MS alloys indicates that the large Si-rich Microstructures in Al-12.2at.%Si alloy melt are probably aggregates comprising multiple small Si-rich Microstructures. This work also provides a pathway for the exploration of Microstructures in other high temperature alloy melts. The structural materials especially metallic alloys are basic support of modern society 1,2. Most of the metallic alloy components are manufactured from the initial melt state via the metallurgy and casting route, and the microstructure in alloy melts will affect the subsequent solidification and mechanical properties of metallic components 3-7. However, the exploration of microstructure in alloy melts is always extraordinary challenging, due to the high temperature of alloy melts that usually ranges from several hundreds to ~ 3500 °C. The Al-Si based alloys are important lightweight engineering alloys in automotive, aerospace and other industries, which constitute ~ 90 % of all aluminium shape castings 8-14. As a special system, Al-Si alloy comprises two elements with a large melting point discrepancy at 754 °C (Al: 660 °C, Si: 1414 °C), which provides theoretical possibility for the existence of Si-rich microstructure in the molten state 15. In addition, the measurement of irreversible changes in physical properties such as density during heating and cooling cycles supported the microstructure evolution in Al-Si alloy melts with changing of melt temperature 16 , however, we can hardly get information of the detail microstructure evolution in the Al-Si alloy melts from the measurement of physical properties. open
-
evidence of disruption of si rich microstructure in engineering lightweight al 12 2at si alloy melt above liquidus temperature
Scientific Reports, 2020Co-Authors: Xixi Dong, Sajjad Amirkhanlou, Pjotr Popel, Ulf Dahlborg, M CalvodahlborgAbstract:The exploration of Microstructures in high temperature alloy melts is important for manufacturing of metallic components but extremely challenging. Here, we report experimental evidence of the disruption of Si-rich microstructure in engineering-lightweight Al-12.2at.%Si alloy melt at 1100 °C, via melt-spinning (MS) of Al1-xSix (x = 0.03,0.07,0.122,0.2) alloy melts from different initial melt temperatures, 800 °C and 1100 °C, under the super-high cooling rate of ~ 106 °C/s, in cooperation with the small angle neutron scattering (SANS) measurement. Si particles in 1100 °C MS alloys are abnormally smaller and increased in number at Al-12.2at.%Si, compared with 800 °C MS alloys, which demonstrates the disruption of Si-rich microstructure in Al-12.2at.%Si alloy melt at 1100 °C. SANS experiment verifies that large quantities of small (0-10 nm) Si-rich Microstructures and small quantities of large (10-240 nm) Si-rich Microstructures exist in Al-12.2at.%Si alloy melt, and the large Si-rich Microstructures disrupt into small Si-rich Microstructures with increasing of melt temperature from 800 to 1100 °C. Microstructure analysis of the MS alloys indicates that the large Si-rich Microstructures in Al-12.2at.%Si alloy melt are probably aggregates comprising multiple small Si-rich Microstructures. This work also provides a pathway for the exploration of Microstructures in other high temperature alloy melts.
Ulf Dahlborg - One of the best experts on this subject based on the ideXlab platform.
-
Evidence of disruption of Si-rich microstructure in engineering-lightweight Al–12.2at.%Si alloy melt above liquidus temperature
Scientific Reports, 2020Co-Authors: Xixi Dong, Sajjad Amirkhanlou, Pjotr Popel, Ulf Dahlborg, M. Calvo-dahlborgAbstract:The exploration of Microstructures in high temperature alloy melts is important for manufacturing of metallic components but extremely challenging. Here, we report experimental evidence of the disruption of Si-rich microstructure in engineering-lightweight Al-12.2at.%Si alloy melt at 1100 °C, via melt-spinning (MS) of Al 1−x Si x (x = 0.03,0.07,0.122,0.2) alloy melts from different initial melt temperatures, 800 °C and 1100 °C, under the super-high cooling rate of ~ 10 6 °C/s, in cooperation with the small angle neutron scattering (SANS) measurement. Si particles in 1100 °C MS alloys are abnormally smaller and increased in number at Al-12.2at.%Si, compared with 800 °C MS alloys, which demonstrates the disruption of Si-rich microstructure in Al-12.2at.%Si alloy melt at 1100 °C. SANS experiment verifies that large quantities of small (0-10 nm) Si-rich Microstructures and small quantities of large (10-240 nm) Si-rich Microstructures exist in Al-12.2at.%Si alloy melt, and the large Si-rich Microstructures disrupt into small Si-rich Microstructures with increasing of melt temperature from 800 to 1100 °C. Microstructure analysis of the MS alloys indicates that the large Si-rich Microstructures in Al-12.2at.%Si alloy melt are probably aggregates comprising multiple small Si-rich Microstructures. This work also provides a pathway for the exploration of Microstructures in other high temperature alloy melts. The structural materials especially metallic alloys are basic support of modern society 1,2. Most of the metallic alloy components are manufactured from the initial melt state via the metallurgy and casting route, and the microstructure in alloy melts will affect the subsequent solidification and mechanical properties of metallic components 3-7. However, the exploration of microstructure in alloy melts is always extraordinary challenging, due to the high temperature of alloy melts that usually ranges from several hundreds to ~ 3500 °C. The Al-Si based alloys are important lightweight engineering alloys in automotive, aerospace and other industries, which constitute ~ 90 % of all aluminium shape castings 8-14. As a special system, Al-Si alloy comprises two elements with a large melting point discrepancy at 754 °C (Al: 660 °C, Si: 1414 °C), which provides theoretical possibility for the existence of Si-rich microstructure in the molten state 15. In addition, the measurement of irreversible changes in physical properties such as density during heating and cooling cycles supported the microstructure evolution in Al-Si alloy melts with changing of melt temperature 16 , however, we can hardly get information of the detail microstructure evolution in the Al-Si alloy melts from the measurement of physical properties. open
-
evidence of disruption of si rich microstructure in engineering lightweight al 12 2at si alloy melt above liquidus temperature
Scientific Reports, 2020Co-Authors: Xixi Dong, Sajjad Amirkhanlou, Pjotr Popel, Ulf Dahlborg, M CalvodahlborgAbstract:The exploration of Microstructures in high temperature alloy melts is important for manufacturing of metallic components but extremely challenging. Here, we report experimental evidence of the disruption of Si-rich microstructure in engineering-lightweight Al-12.2at.%Si alloy melt at 1100 °C, via melt-spinning (MS) of Al1-xSix (x = 0.03,0.07,0.122,0.2) alloy melts from different initial melt temperatures, 800 °C and 1100 °C, under the super-high cooling rate of ~ 106 °C/s, in cooperation with the small angle neutron scattering (SANS) measurement. Si particles in 1100 °C MS alloys are abnormally smaller and increased in number at Al-12.2at.%Si, compared with 800 °C MS alloys, which demonstrates the disruption of Si-rich microstructure in Al-12.2at.%Si alloy melt at 1100 °C. SANS experiment verifies that large quantities of small (0-10 nm) Si-rich Microstructures and small quantities of large (10-240 nm) Si-rich Microstructures exist in Al-12.2at.%Si alloy melt, and the large Si-rich Microstructures disrupt into small Si-rich Microstructures with increasing of melt temperature from 800 to 1100 °C. Microstructure analysis of the MS alloys indicates that the large Si-rich Microstructures in Al-12.2at.%Si alloy melt are probably aggregates comprising multiple small Si-rich Microstructures. This work also provides a pathway for the exploration of Microstructures in other high temperature alloy melts.